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Raman Spectroscopy of Quantum Wires and Dots: Magnetoplasmons and Edge-Spin-Density Modes

Schüller, Christian
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Date of publication of this fulltext: 05 Oct 2009 13:29


Abstract

We review recent magneto-Raman experiments on electronic excitations in GaAs–AlGaAs quantum wires and dots. We observe simultaneously collective spin-density and charge-density excitations (SDEs and CDEs), and also single-particle-like excitations. In a magnetic field, the CDEs (magnetoplasmons) exhibit a complex anticrossing behavior, which, in quantum wires, strongly depends on the direction of ...

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